CMake: Remove redundancies and support clang ToT

Problem:
- There are redundant options being set for some directories.
- Clang ToT fails to compile the project.

Solution:
- Remove redundancies.
- Fix clang error list.

CMakeLists.txt

@@ -77,7 +77,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
- add_compile_options(-fconcepts -Wno-literal-suffix)
+ add_compile_options(-fconcepts)
 elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
  add_compile_options(-Wno-overloaded-virtual -Wno-user-defined-literals)
 endif()
@@ -171,6 +171,7 @@ add_compile_options(-Wdouble-promotion)
 add_compile_options(-Wno-expansion-to-defined)
 add_compile_options(-Wformat=2)
 add_compile_options(-Wimplicit-fallthrough)
+add_compile_options(-Wno-literal-suffix)
 add_compile_options(-Wlogical-op)
 add_compile_options(-Wmisleading-indentation)
 add_compile_options(-Wmissing-declarations)
@@ -187,13 +188,7 @@ add_compile_options(-fstack-protector-strong)
 add_compile_options(-g1)
 
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
- add_compile_options(-Wno-literal-suffix)
-
- add_compile_options(-fconcepts)
  add_compile_options(-fstack-clash-protection)
-elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
- add_compile_options(-Wno-overloaded-virtual)
- add_compile_options(-Wno-user-defined-literals)
 endif()
 
 add_compile_definitions(DEBUG SANITIZE_PTRS)